Soda fountain



H. W. KLEIST SODA FOUNTAIN Aug. 24, 1943.

Filed Oct. 30, 19 40 '2 Sheets-Sheet 1 Z a u v Aug. 24, 1943.

H. W. KLEIST SODA FOUNTAIN Filed Oct. 30, 1940 Z'SheetS-Sheet 2 w WNPatented Aug. 24, 1943 UNITED STATES PATENT OFFICE SODA roum'am HermanW. Kleist, Chicago, 111., assignor to Dole Refrigerating Company,Chicago, 111., a corporation of Illinois Application October so, 1940.Serial No. 363.575

1 Claim. (01. 82-4) This invention relates to soda. fountains and hasfor its object to provide a new and improved device of this description.

The soda fountains now in use have a number June 10. 1939, whichconsists of one or more holdover plates 1 similar to the plates 2. whichare arranged to form a receptacle or compartment in which coils arelocated in proximity to the coolof difierent kinds of sirup and thissirup must be ing plate or plates, so that as the water and soda kept ata proper low temperature. The invenwater pass through these coils, thewater and tion has as a further object to provide means for soda waterare cooled. The. water enters the doing this. The invention has as afurther obcoil in this compartment through the pipe 8 and ject toprovide a soda fountain with means for passes out through the pipe 9 tothe draft arm 9a. cooling the ice cream section, the water, the The.soda. water passes into the coil in'this comsoda water and the sirup.The invention has as partment through the pipe l0 and passes out to afurther object to provide a soda fountain with the draft arm I lathrough the pipe H. a. cooling apparatus for cooling the ice cream sec-The refrigerant passes from the compressor l2 tion, the water, thesodawater and the sirup. through the-pipe l3 to the pipe I4 and thetherwhich will greatly reduce the number of times l5 mostatic expansionvalve' l5 and then passes the apparatus cycles in a given period andwhich through the pipe l8 into the holdover sirup rail will still keepthe ice cream section, the water, plate l1. This plate consists of ahermetically the soda water and the sirup at the proper low sealed tankextending longitudinally along the temperature. The inventionhas furtherobjects sirup jars, with a coil therein and with a eutectic which aremore particularly pointed out in the filling a portion of the tank, witha part of the accompanying description. air withdrawn so as to cause thesides of the Referring now to the drawing, tank to tightly press againstthe coil. There is a Fig. 1 is a perspective view of a soda fountain,sirup jar receptacle 18 of insulating material with parts broken away;which has a series of sirup Jars .i 9 located therein Fig. 2 is a planview; so as to be'cooled by this holdover plate 11. The

Fig. 3 is a rear elevation of the water and soda sirup in these sirupjarsmust be kept at a conwater cooler; slderably higher temperature thanthe ice cream. 4 is a plan view of the device of Fig. The ice creamreceptacle, for example, may be i n m r l re r o like parts hroughoutkept in the neighborhood or zero degrees Fahrenthe several figures.heit, whereas the sirup must be kept in the In this construction thereis a suitable insuneighborhood of thirty-five to forty degrees latedcasing l in which the apparatusis located. Fahrenheit. so that it willnot freeze and so that In this casing there is provi ed n i re m it willbe cool enough so it will not warm up the pa m having a series of coldplates 2, drink and so that it will be kept cool enough not h ch aPreferably hOIdOVEI Vacuum P s to spoil. In adevice of this kind thereis a cycling which consist of a hermetically sealedtank conapparatuswhich causes the compressor to operate tainlng a coil 3 x en in a n r hh r in to secure a. certain predetermined temperature which is conne edwi h a c mpr or n and then to be shut off for a considerable timethrough which the refrigerant material pas and then start up again. Withthe ordinary there being a eutectic in the tank which p r- 40 coolingdevice forthe sirup, when the compressor tially fills it. This tank hasair withdrawn from is stopped, the sirup will become warm and will it soas to produ e a Vacuum partial Vacuum warm up the drink and it is veryliable to spoil. which causes the sides of the tank to be tig tly Withthe'present device this is entirely avoided. pressed against the coil 3.This ice cream com- The refrigerant material after passing throughpartment is arranged to be kept at a temperature the coilin plate l'lpasses out through the pipe of from'minus five degrees Fahrenheit tofive 20'and thence through a coil in the water and degrees Fahrenheit. 7soda water cooling device, shown in Figs. 3 and4, There is a secondcompartment 5 for bottled and thence through pipe 2| and pipe 22 to pipe23 goods and which is separ ted rom he ice C am and thence back to thecompressor I2. There is compartment by the W ll 5 of a ing mateto acontrol bulb 2 associated with the return pipe rial. This compartm t spt at a mp r tur 20 and connected by a pi e 25 with the expansion offrom thirty-five degrees Fahrenheit to forty valve I! so as to controlthe passage of the redegrees Fahrenheit. Within this compartment isfrigerant material to the plate II through this located a water and asoda water cooler 6 of the expansion valve by means of the temperatureof type shown in my application No. 238,419 filed I the refrigerantmaterial in the pipe 2|.

The refrigerant material passes to the ice cream cooling plates 2 fromthe compressor through the pipe Bend the pipe 26 to the expanslon valve21. controlled by. abulb" 21a, and thence through pipe 28 to the pipe29. The pipe 29 connects with the coil in the righthand plate 2 and therefrigerant passes through the coil in this plate and then by means ofthe pipe 30 into the second plate and through the coil in thesecondplate, and then by the pipe 3| into the third-plate and throughthe coil in the third plate, and then by means of the pipe 32 into thefourth plate and through'the coil in the fourth plate, and thence bypipe 33 into the fifth plate and through the coil in the fifth plate,and thence by pipe 34 back to the pipe 23 and thence to the comprs'sor.The ice cream is placed between the plates in the ice cream receptacleand there is a top 35 and hinged covers 36 and 81 to secure. access tothis ice cream, see Fig, 2.

The sirup jars may be of any form or design desired and I haveillustrated a number of these" sirup jars in Fig. 2, located on oppositesides of the draft arms 9a and vI Ia for the water and the soda water.There is the usual counter 38 upon which the ice cream and drinks areserved. The return pipe for the refrigerant material from the plateswhich cool the water and the soda water has a shut-off valve 39 thereinand there is a bulb 40 on the inside of this water and soda watercooling device. This bulb shuts" off the valve 39 so as to,prevent thewater and the soda water from freezing;

While one vacuum holdover plate may be used for cooling the water andthe soda water, I have Arrangement is made to start and stop thecompressor to meet the requirements of the apparatus. One method fordoing this is herein fllustrated, wherein there is a bulb 42 connectedwith one\of the plates in the ice cream receptacle by means of a clamp43. There is a connection 44 from this bulb to the electric switch whichcontrols the motor 6. when the temperature falls below a predeterminedpoint, the

switch II is opened to stop the motor and the compressor. Theholdoverplates then keep the ice cream receptacle and the sirup iarreceptacle and the bottle receptacle and the water and soda waterreceptacle in the proper cooled condition for a considerable length oftime; When the temperature rises above a predetermined point,

theelectric switch is closed .so as to start the compressor inoperation. This causes the apparatus'to cycle and the holdover platesgreatly reduce the number of times the apparatus cycles in a givenperiod of time, that is the number of times the compressor isstarted andstopped.

I claim: A soda fountain comprising an ice cream re- 5 ceptacle,'cooling plates in said receptacle for shown a construction where thereare two such a plates l with the cooling receptacle for the water andthe soda water coils intermediate them, the water entering the watercoil through the Pipe 8 and passing out through the pipe 9, the.

soda water entering the soda water coil through the pipe l0 and passingout through the pipe ll, In this construction the return pipe 20 forthereirigerant material for the holdover plates con- 1 nects with thecoil inthe holdover plate I. The other end of this coil is connected toa pipe 4! which connects with the. coil in the other hold over plate I.The pipe it connects with the other frigerant material through the pipesin the tank I in sirup Jar cooling receptacle.

' HERMAN end of this coil and leads back to the compressor.

exhausted from the tank to cause the sides to I press against said pipe,a refrigerating unit comprising a motor and a compressor-with which saidpipes are connected, a switch for. starting and st0ppln8 saidmotor 'andcompressor, a controlling device for said switch associated with saidice cream receptacle and separate. automatic means for separatelycontrolling the flow of re- W. KLEIBT.

